Having issues with my girls. I over fed them 11 days ago with Fox Big Grow. Lost a lot of fan leaves. About 4 days ago I flushed the soil with straight water. Still getting the same issue. Fed them yesterday with a half dose of Fox Farms. The leaves all start as the one shown and end up dying. Other picture is of the plant. Through out all of this the plant is still growing.
My girls need help
- Thread starter RonT
- Start date
Still growing, you mean new leaves get this discoloration?
Is it based at the bottom of plant only or new growth at the top too?
Is it based at the bottom of plant only or new growth at the top too?
- Thread starter
- #3
I would say, flush again, let dry, water normally, with water only...
Emilya Green
Well-Known Member
tell us about your soil, and any additives. What pH if any are you adjusting your water to if you pH? I know what I am suspecting since it is a mobile deficiency, but I need more details. What levels did you feed them at?
Emilya Green
Well-Known Member
I can't tell from the picture, but are you flowering? Where are you at in the grow?
- Thread starter
- #7
Not flowering yet. I’m using Miracle Grow potting soil, PH is 6.8 I just adjusted it to 6.5. I fed them with Fox Farms Big Grow 10 days ago and really over fed them, way more then is should, I gave them about 4 tablespoons per gallon.
When the leaves started turning I watered with water only. I flushed the soil with 10 gallons of water only 5 days ago. I watered yesterday and added a very small amount of Fox Farm Big Grow. 1 tsp per gallon.
When the leaves started turning I watered with water only. I flushed the soil with 10 gallons of water only 5 days ago. I watered yesterday and added a very small amount of Fox Farm Big Grow. 1 tsp per gallon.
Emilya Green
Well-Known Member
I was just talking about the possibilities of this deficiency yesterday when I was talking to someone about using too high of a pH in soil. Look at the two boxes on the right of this chart. The left one shows you the proper range of pH in soil, from 6.3-6.8. The chart on the right shows you what major nutrients are mobile at those pH levels.
When you water, the pH of your soil begins to drift. It starts at whatever pH you adjust your fluids to and then goes up from there. When you watered at 6.8, manganese and iron are no longer mobile; they can not move up into the plant. At 6.5 they are barely mobile, but when you adjusted downwards you will have gotten some effect...
I suggest adjusting your pH from now on to 6.3 and then let the drift of the MG do its work to move you up through the range. This should solve your manganese, molybdenum and iron deficiency. The iron not being able to be used is also affecting calcium availability in the plant. The damaged leaves won't completely come back, but over a week or so you should see an overall improvement. I would also not worry about using the Grow Big for a while.. the Miracle Grow had plenty of Nitrogen in it to get you through veg without a problem.
- Thread starter
- #9
Thank you so much for your advice it is appreciated. I have one more concern. I’m nervous about not having enough room to flower. I planned on flowering last week but put it off because of the issues. While I have the issues the plant is still growing fine. How long do think I should wait to flower?I provided this chart so you can see what is happening. Your leaf symptoms point to this being a mobile deficiency, ie, the plants are able to grab the needed element from leaves all over the plant to supply what is needed for the top growth, but yet without enough of it available in the plant, even the new growth is dying.
I was just talking about the possibilities of this deficiency yesterday when I was talking to someone about using too high of a pH in soil. Look at the two boxes on the right of this chart. The left one shows you the proper range of pH in soil, from 6.3-6.8. The chart on the right shows you what major nutrients are mobile at those pH levels.
When you water, the pH of your soil begins to drift. It starts at whatever pH you adjust your fluids to and then goes up from there. When you watered at 6.8, manganese and iron are no longer mobile; they can not move up into the plant. At 6.5 they are barely mobile, but when you adjusted downwards you will have gotten some effect...
I suggest adjusting your pH from now on to 6.3 and then let the drift of the MG do its work to move you up through the range. This should solve your manganese and iron deficiency. The damaged leaves won't completely come back, but over a week or so you should see an overall improvement. I would also not worry about using the Grow Big for a while.. the Miracle Grow had plenty of Nitrogen in it to get you through veg without a problem.
Emilya Green
Well-Known Member
it sounds like you should move to flower soon then. Remember that the plant will stretch upon entering flower, sometimes to 2-3 times the size it was in veg.
- Thread starter
- #11
You are in the best of hands Ron.. Emilya is one heck of a grower with tons of knowledge that she shares.
She was with me when I started
She was with me when I started
- Thread starter
- #13
Are these the same leaves or new leaves with same problem?
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- #15
New leave with the same problem, they keep growing after I get a new leaf it starts doing that about a week later.
Emilya Green
Well-Known Member
it will take several watering cycles to get the benefit of the new lower pH, but be patient. Nothing happens instantly in the plant world.
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- #17
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- #18
Emilya Green
Well-Known Member
Ron, the soil pH unfortunately is not a concern... it is perfect where it is. You need a better way to check fluid pH and just make sure that your fluids all come into the soil at 6.3 pH. The soil will take it from there.
- Thread starter
- #20
Ok good, I’m due to water again on Thursday and I will check the run off. Thanks again.
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